Union members at public broadcaster Māori TV are set to walk off the job in protest over what they see as unfair treatment.

E tū Industry Coordinator, Joe Gallagher says the action follows months of delays by the TV company in addressing members' pay claims.

Gallagher said union members were told in October that the company had no money and that they would have to wait for the board to provide guidance on a new financial management plan.

"We were supposed to reconvene for talks in November, but we heard nothing by Christmas," Gallagher said.

"Then we were informed by our members that Māori TV had through performance appraisals paid non-union staff a bonus before Xmas and a wage adjustment in January this year.

We think they've undermined the bargaining process by telling us they have no money while giving bonuses and a pay rise to non-union workers."

Gallagher says the strike action will involve 25 to 30 staff, which is approximately a third of the overall headcount at the company.

The Herald has requested comment from the Māori TV communications team.

Gallagher added that Māori TV was not living up to its claims of being a values-based organisation.

"The direction and behaviour of the management at Māori TV is seriously lacking for a company and organisation which promotes the values of tikanga."

The strike action will run for 24 hours on 8 August.